Rodents (Rodentia) is a biological order of the phylum Chordata (Chordates) and class Mammalia (Mammals).
Castoridae
Capromyidae
Gliridae
Ctenodactylidae
Dipodidae
Muridae
Aplodontiidae
Erethizontidae
Myocastoridae
Geomyidae
Heteromyidae
Anomaluridae
Pedetidae
Sciuridae
Tubulidentata
Didelphimorphia
Artiodactyla
Chiroptera
Carnivora
Cetacea
Sirenia
Macroscelidea
Proboscidea
Dermoptera
Hyracoidea
Notoryctemorphia
Diprotodontia
Perissodactyla
Pholidota
Primates
Lagomorpha
Rodentia
Pilosa
Scandentia